What are advantages of using microwaves? Advantages of Microwaves Supports larger bandwidth and hence more information is transmitted. More antenna gain is possible. Higher data rates are transmitted as the bandwidth is more. Antenna size gets reduced, as the frequencies are higher. Low power consumption as the signals are of higher frequencies. What are the […]
How can you show that unlike poles attract each other while like poles repel each other?
How can you show that unlike poles attract each other while like poles repel each other? magnetic attraction and repulsion Bar magnets showing the attraction of opposite poles and repulsion of like poles. if you bring the South pole of the magnet B near the north pole of the suspended magnet A as shown in […]
What are some examples of salinity?
What are some examples of salinity? Primary salinity occurs naturally in soils and waters. Examples of naturally occurring saline areas include salt lakes, salt pans, salt marshes and salt flats. Secondary salinity is salting that results from human activities, usually land development and agriculture. What is the meaning of salinity? Salinity (/səˈlɪnɪti/) is the saltiness […]
Which property of water makes it more useful as a coolant in sweating?
Which property of water makes it more useful as a coolant in sweating? Water’s thermal properties, its high specific heat, means that it can cool us Evaporating sweat (water changing phase from liquid to gas) takes heat away from the body Water is also the main component of blood plasma. It transfers heat from the […]
What is true for electromagnetic waves?
What is true for electromagnetic waves? Definition: Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields. They are also perpendicular to the direction of the EM wave. How […]
What is the wavelength of green light?
What is the wavelength of green light? 550 What color laser is the strongest? green lasers What is the difference between a Class 3 and Class 4 laser? So what’s the difference between class III and class IV lasers? The biggest difference is their maximum power output. The FDA defines a class IIIb laser as […]
What 3 things can be used to measure volume?
What 3 things can be used to measure volume? Chemists use beakers, flasks, burets and pipets to measure the volume of liquids. What are 3 ways to measure the volume of an object? Measure length, width, and height and multiply. 4. How would you calculate the volume of an irregular sized object like a rock? […]
Can noise canceling hurt your ears?
Can noise canceling hurt your ears? Overall, noise cancellation in headphones doesn’t affect your hearing negatively. You may hear a slight hissing sound when you the ANC is turned on, but that’s about it. However, for some people this can be irritating and even result in dizziness. Keep in mind, that this hissing sound does […]
Does amplitude equal loudness?
Does amplitude equal loudness? The amplitude of a sound wave determines its loudness or volume. A larger amplitude means a louder sound, and a smaller amplitude means a softer sound. The volume we receive thus depends on both the amplitude of a sound wave and whether its frequency lies in a region where the ear […]